body{
    height: 100%;
    overflow: hidden;
}
#page_gategory{
    display: flex;
    flex-direction: row;
    height: 100%;    
}
#detail_main{    
    margin:0 0 0 340px;
    padding:20px;
    flex:1;
    min-height: 880px;   
    position: relative;
    #detail_con{
        position: relative;
    } 
}
#menu_gategory{
    margin:10px;
    height: 100%;
    width:330px;
    position: absolute;    
    padding-bottom:10px;
    overflow-y: auto;
}
#menu_gategory_list{
    li{
        line-height: 165%;
        padding:5px 0;
        display: flex;
        span{
            cursor: pointer;
            flex:1;
            font-size: 12px;
        }
        em{
            margin-left: auto;
            padding-right: 10px;
            color: #999;
            font-size: 12px;
        }
        .level_0{
            color:#007fff;
            font-weight: bold;
            font-size: 14px;
        }
        .level_1{
            font-size: 14px;            
        }
        .level_2{
            padding-left: 10px;
            color:#666;
        }
        .level_3{
            padding-left: 10px;
        }
    }
}
.book_con{
    display: flex;
    .book_img{
        margin-right: 20px;
    }
    .book_desc{
        line-height: 175%;
        text-align: justify;
    }
}
.book_button{
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    right: 10px;
    bottom: 10px;
    .ipt_btn1{
        margin:10px;
    }
    a{
        color: #007fff;
    }
}
#btn_prev{
    display: none;
}
#page_info{
    display: flex;
    font-size: 12px;
    width: 100%;
    border-bottom: 1px solid #ccc;
    padding-bottom: 15px;
    #page_info_tit{
        text-align: left;
        color:brown;
    }
    #page_info_num{
        margin-left: auto;
        font-style: italic;
        color: #999;
    }
}